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  1. Golf IV & Jetta IV
    So as the title states my 2000 Jetta 1.8t awd has a stage 2 awp ecu installed. But the problem is the car still has the narrowband O2 sensor and harness which is causing it to run pretty wonky. My question is how can I install a wideband O2 harness to alleviate this issue. Is there a write up...
  2. Passat (B5)
    Been looking for a tuner for while for my 1.8t AEB BT. But kinda hard to find one . lol My last option its go w wideband conversion and then tune it, but have a few NOOBIE question. Unitroic sell a wire harness”plug and play” its that all i need to go wideband”+(ecu, and wideband 02”)...
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